[an error occurred while processing this directive]
JOURNAL OF PRACTICAL ELECTROCARDIOLOGY
 Home | About Journal | Editorial Board | Subscriptions | Instruction for Authors | Priority of publication | 中文
 
　

Office Online

 　
　  Author Center
　  Peer Review
　  Editor Work
　  Office Work
　  Editor-in-chief
　

Journal Online

 　
　  Forthcoming Articles
　  Current Issue
　  Next Issue
　  Archive
　  Read Articles
　  Download Articles
　  Email Alert
　  
Quick Search  
  Advanced Search
JOURNAL OF PRACTICAL ELECTROCARDIOLOGY
 
2011 Vol.20 Issue.2
Published 2011-12-28
Article
81 Value of ECG in identifying the guilty artery in patients  with inferior wall acute myocardial infarction
Objective  To investigate the value of electrocardiogram（ECG）in identifying the guilty artery in patients with inferior wall acute myocardial infarction（AMI）. Methods  By retrospective analysis of   ECGs and Coronary angiographic data of 73 patients with inferior wall AMI to find valuable ECG changes that   can forecast the guilty artery（also means infarct-related artery， IRA）. Results  The IRAs were right coronary   artery（RCA）in 59（81%） patients and left circumflex（LCx） in 14（19%） patients. By chi-square test:   Combine with right ventricular infarction and serious slow arrhythmia， ST elevation in lead V1   ≥0.5 mm，ST elevation in leadⅢ exceeding that of leadⅡ， ST depression in lead I and（or） lead aVL≥0.5mm， sum of ST depression in lead V 2and ST elevation in lead aVF>0 identified RCA occlusion. Among these criteria， ST elevation in lead Vl， ST depression in leadⅠ≥0.5 mm and combined with right ventricular infarction had the highest specificity and positive predictive value（PPV）of 100%， respectively， and ST elevation in leadⅢ exceeding that of leadⅡ had the highest sensitivity of 81%. ST depression in lead V2≥0.5 mm had the highest sensitivity of 93%in identified LCx as IRA， and ST elevation in lead aVL≥0.5 mm had the highest specificity and PPV of 100%，respectively. Conclusion  ECG plays an important role in predicting the IRAs in patients with inferior wall AMI.
2011 Vol. 20 (2): 81- [Abstract] ( 1750 ) [HTML 1KB] [ PDF 990KB] ( 2347 )
84 Response of cardiovascular system to exercise in the Non-dipper patients with essential hypertension
Objective  To investigate the response of cardiovascular system of the non-dipper patients with essential hypertension（EH） during exercising. Methods  Ninty five EH patients were taken ambulatory blood pressure（BP）monitoring and treadmill exercise test. According to different nocturnal BP reduction rate，these patients were divided into two groups: group A: non-dipper（n =52），group B:   dipper（n =43）.Heart rate，BP response，time and mets were recorded and analyzed. Chronotropic response index（CRI），maximum double rate-pressure product（RPP）and myocardial oxygen consumption  （MVO2） were calculated and compared. Results  The group A had heart rate blunted response（150.27  ±13.81 vs 162.34±9.63;71.76±13.14 vs 81.46±14.02），P <0.01，0.001;lower CRI than controls  （0.86±0.25 vs 0.98±0.17），P <0.05; and chronotropic incompetence occupied 27 cases  （   51.92%）were significantly increased，P <0.05; the systolic BP（SBP）of peak exercise，RPP and   MVO2  were significantly higher than the group B， P<0.05. Conclusion  Non-dipper patients with EH   tends to have a higher incidence of exaggerated SBP and MVO2，and Chronotropic incompetence is common，so rehabilitation should be individual.
2011 Vol. 20 (2): 84- [Abstract] ( 1473 ) [HTML 1KB] [ PDF 908KB] ( 2024 )
87 Significance of QT interval and QT dispersion changes in spontaneous type 1 electrocardiogram（ECG）in patients
Objective  To explore the significance of QT interval and QT dispersion changes in spontaneous type 1 Brugada waves in patients. Methods  Fifteen patients with Spontaneous type 1 Brugada waves were directly examined with 12 lead electrocardiogram，QT interval，QT dispersion was measured， type I Brugada waves were compared with non-Brugada waves and Healthy control group. Results   The QT interval and QT dispersion in spontaneous type 1 Brugada waves are significant difference to non-  Brugada waves， P <0.05; compared with Healthy control group（15 cases）of the same age，each index  is significant difference，P <0.05. Conclusion  In patients showed in spontaneous type 1 Brugada waves the QT interval，QT dispersion probably are significantly higher than non-Brugada waves and the control group，patients showed spontaneous type 1 Brugada waves is not only the early repolarization abnormalities，but also the repolarization time and its dispersion increased significantly and increased the risk of sudden death.
2011 Vol. 20 (2): 87- [Abstract] ( 1261 ) [HTML 1KB] [ PDF 1599KB] ( 2007 )
89 Relationship between heart rate turbulence and heart rate variability in patients with diabetes mellitus
Objective  To investigate the association between heart rate turbulence（HRT）and heart rate variability（HRV）. Methods  A 24-hour ECG Holter monitoring was performed to calculate turbulence onset，turbulence slope and HRV parameters in 50 patients with diabetes and 50 controls. Results  The HRT and HRV in patients were significantly lower than those in controls. There are significant correlation between turbulence onset and SDNN，SDANN，low frequency power（LF）（P <0.05）. Significant correlation between turbulence slope and SDNN，RMSSD，high frequency power（HF）was observed（P<0.05）. Conclusion  HRT was blunted in patients with diabetes mellitus and correlate strongly with HRV.HRT should be more useful in the diagnosis of autonomic nerve function damage.
2011 Vol. 20 (2): 89- [Abstract] ( 1502 ) [HTML 1KB] [ PDF 901KB] ( 1885 )
92 Clinical significance of threadmill exercise test induced ST segment elevation to diagnose coronary heart disease
Objective  To explore the clinical significance of threadmill exercise test induced ST segment elevation to diagnose coronary heart disease. Methods: Compared the coronary artery contrast results of patients in ST segment elevation group and ST segment lower group in threadmill exercise test.   Results: The positive rate，level of angiostenosis and involvement branch number of coronary artery contrast results of patients in ST segment elevation group and ST segment lower group were different significantly（P <0.05）. Conclusion: Threadmill exercise test induced ST segment elevation was the symbol of cardiac muscle local serious ischemic injury caused by coronary artery severe stricture or spasm，and it   was the important index of diagnosing coronary heart disease .
2011 Vol. 20 (2): 92- [Abstract] ( 1049 ) [HTML 1KB] [ PDF 897KB] ( 1818 )
94 Electrocardiogram analysis on patients with poisoning by ingesting porcine thyroid
Objective  To investigate the electrocardiogram（ECG）changes on patients with poisoning by ingesting porcine thyroid and patients with hyperthyroidism. Methods  ECGs were analyzed to study the changes of 27 patients with poisoning by ingesting porcine thyroid，85 patients with hyperthyroidism and 85 persons who received health check up were served as control group. Results  The incidences of arrhythmia，ST-T changes and left ventricule hypervoltage were the same in poisoning group and hyperthyroidism group. There was no statistic difference of ECG changes between two groups（P >0.05）. The most frequent abnormality of two groups was sinus tachycardia and ST-T changes. But these two groups were both had statistically difference with persons who received health check up. Conclusion   The ECG changes on patient with poisoning by ingesting porcine thyroid has no statistic difference with patients with hyperthyroidism. But they both had statistically difference with persons who received health check up，indicated that the elevated thyroid hormone might account for the ECG changes on patients with ingesting porcine thyroid gland and patients with hyperthyroidism.
2011 Vol. 20 (2): 94- [Abstract] ( 1173 ) [HTML 1KB] [ PDF 1598KB] ( 1873 )
96 Observation and analysis of temporary J wave with T wave high-amplitude after off-pump coronary artery bypass
Objective  To evaluate the factors associated with temporary J wave with T wave high-amplitude and its significations after off-pump coronary artery bypass（OPCAB） . Methods  Data of 55 patients undergoing OPCAB surgery were retrospectively analyzed. According to the phenomenon   whether the J wave with T wave high-amplitude were observed by ECG，the patients were divided into a J wave with T wave high-amplitude group（observation group，18 patients） and non-J wave with T wave high-amplitude group（control group，37 patients）. The culprit lesions，grades of coronary artery stenosis，  duration of the operations，transient rise of cTnI after OPCAB and patients' ages of the two groups were compared. Results  The rates of multi-vessel stenosis，coronary artery stenosis about 90%-100%， the duration of the operations that lasted more than 3 hours，transient rise of cTnI（>0.1μg/L）after OPCAB and the ages above 60 of the observation group were higher than those of the control group［94.4%（17/  18） to 32.4%（12/37），88.9%（16/18）to 35.1%（13/37），100%（18/18） to 40.5%（15/37），55.5%（10/18）to 16.2%（6/37），83.3%（15/18）to 27.0%（10/37）］.Differences were statistically   significant（P<0.005）. Conclusion  The fact that the patients ECG showed J wave with T wave high-amplitude after OPCAB suggested that the lesions of coronary artery diseases were severe，the ranges were wide，the ages were older，the surgery injury was serious，and the myocardial ischemia and injury were serious. There is a potential risk of malignant arrhythmia in the patients whose ECG showed J wave with T wave high-amplitude after OPCAB. Therefore we should pay sufficient attention to them in clinical.
2011 Vol. 20 (2): 96- [Abstract] ( 1200 ) [HTML 1KB] [ PDF 3680KB] ( 1637 )
100 Effect of voltage of QRS wave complex on prognosis in patients with AMI after thrombolytic therapy
Objective  To evaluate the effect of voltage of QRS wave complex on prognosis after thrombolytic therapy，observation and comparison of three electrocardiograms about the voltage（R+S）of QRS wave complex of patients with anterior or anteroseptal AMI were carried out. Methods  Sixty four   patients with anterior or anteroseptal AMI ST segment elevations were collected. Their electrocardiograms were taken at admission，0.5-1 hour after thrombolytic therapy and the last day before pre-discharge.  The voltage of QRS wave complex in anterior or anteroseptal leads of three electrocardiograms was analyzed. Results  In infarction related leads，voltage of QRS wave complex differences in three electrocardiograms have no statistical significance（P>0.05）. Conclusion  Variations of voltage（R+S）of QRS wave complex in chest leads cannot indicate the effect of thrombolytic therapy，which may improve revascularization rate，save dying myocardium，protect cardiac function，improve the prognosis，prevent heart failure and reduce the death rate.
2011 Vol. 20 (2): 100- [Abstract] ( 906 ) [HTML 1KB] [ PDF 892KB] ( 1786 )
102 1 536 cases of fracture ECG analysis
Objective  To observe the ECG（electrocardiogram）change characteristics of fracture patients. Methods  Made retrospective 1536 cases of fracture ECG analysis. Results  ① 446 fracture patients had abnormal electrocardiogram，total incidence rate is 29%. The abnormal electrocardiogram had 476 records，among which 223 records appeared cardiac arrhythmia（accounted for 46.8%），128 records appeared ST-T change（accounted for 38.2%）， 18 records appeared LVH（Left Ventricular Hypertrophy）with consequental ST-T change，40 records appeared left ventricular high voltage（accounted for 8.4%） while others accounted for 2.6%.② The combined injury patients（fractured over two places）showed the highest occurrence rates of abnormal ECG，secondly it is head and neck，chest and abdomen and limb.③ The abnormal ECG rate of the patients whose age is under 20，20-44，41～60 and over 61 is 12.7%，16. 5%，31. 8% and 71.4 %，respectively. The abnormal ECG rate of the pa-  tients whose age over 61 is 71.4%，and the abnormal ECG rate of the patients whose age over 60 is 20.  3%，there was obvious difference in age between two groups（P <0.05），the occurrence rate of abnormal ECG increases with the growing age. Conclusion  The stress reaction caused by the fracture can be showed as ECG change，the abnormal ECG is relative with the injury site，state of injury，age and patients condition to a certain extent.
2011 Vol. 20 (2): 102- [Abstract] ( 949 ) [HTML 1KB] [ PDF 904KB] ( 1788 )
105 Electrocardiogram observation of drug therapy in acute pulmonary embolism before and after treatment
Objective  To discuss electrocardiographic（ECG）changes in acute pulmonary embolism and its clinical significance. Methods  ECG characteristics were analyzed before and after treatment in 23 patients with acute pulmnary embolism. Results  The parameters such as sinus tachycardia，SⅠQ ⅢT Ⅲor QⅢT Ⅲ， ring bundle branch，ECG showed T to deepen on of precordal leads，terminal R raised up of AVR lead，clock wise rotation，right axis deviation and premature beats improved significantly after treatment（P <0.05）. Conclusion  Combining with symptoms such as dyspnoea，chest pain and cough，non-specifit ECG changes are of important values in diagnosing acute pulmonary embolism patients.
2011 Vol. 20 (2): 105- [Abstract] ( 1133 ) [HTML 1KB] [ PDF 1652KB] ( 1814 )
107 Clinical analysis of complete pre-excitation syndrome
Objective  To analyze and discuss ECG feature and differential diagnosis and treatment of complete pre-excitation syndrome. Methods  Electrocardiogram characteristics and QRS morphologies of 40 patients with complete pre-excitation syndrome were analyzed. Results  Twenty five cases with atrial fibrillation（AF），8 of which were accompanied by organic heart disease，sinus rhythm was corrected by using propafenone or amiodarone administration and direct electrical cardioversion treatment respectively; 2 cases with atrial flutter occurred in the AF termination，5 cases with reverse type atrioventricular reentrant tachycardia.10 cases with complete pre-excitation syndrome during sinus rhythm，2 of which with one degree atrioventricular block，2 cases with two degree atrioventricular block，5 cases with three degree atrioventricular block，one with complete double bundle branch block，pacemaker implantation was performed in 7. Conclusion  Complete pre-excitation syndrome morphologies，typical pre-excitation syndrome and various combinations of normal QRS waves were present when AF occurred. Complete pre-excitation syndrome was present when one degree or three degree atrioventricular block occurred in the normal atrioventricular pathway.
2011 Vol. 20 (2): 107- [Abstract] ( 1137 ) [HTML 1KB] [ PDF 909KB] ( 1930 )
110 Analysis of electrocardiogram in 80 patients with diabetes mellitus
Objective  To explore the clinical and electrocardiographic features in patients with diabetes mellitus. Methods  ECG data of 80 cases with diabetic were analyzed， ECG data of 80 healthy subjects of gender，age matched as control. Results  Abnormal ECG 33 cases（41%）in diabetic patients and 8 cases（10%）in normal control group，there is significant difference in two groups（P <0.005）. Diabetic patients with ECG changes to ST-T change，painless myocardial infarction and arrhythmia mainly. Conclusion  There was a higher incidence of abnormal ECG in diabetic patients，and in females than in males，more performance for the ST-T change，painless myocardial infarction and arrhythmia.
2011 Vol. 20 (2): 110- [Abstract] ( 1023 ) [HTML 1KB] [ PDF 892KB] ( 1715 )
112
2011 Vol. 20 (2): 112- [Abstract] ( 942 ) [HTML 1KB] [ PDF 893KB] ( 1927 )
114
2011 Vol. 20 (2): 114- [Abstract] ( 1113 ) [HTML 1KB] [ PDF 889KB] ( 1834 )
116
2011 Vol. 20 (2): 116- [Abstract] ( 1359 ) [HTML 1KB] [ PDF 894KB] ( 2174 )
118
2011 Vol. 20 (2): 118- [Abstract] ( 1129 ) [HTML 1KB] [ PDF 888KB] ( 2084 )
119
2011 Vol. 20 (2): 119- [Abstract] ( 945 ) [HTML 1KB] [ PDF 886KB] ( 1898 )
121
2011 Vol. 20 (2): 121- [Abstract] ( 1097 ) [HTML 1KB] [ PDF 2848KB] ( 1843 )
122
2011 Vol. 20 (2): 122- [Abstract] ( 993 ) [HTML 1KB] [ PDF 2646KB] ( 1588 )
124
2011 Vol. 20 (2): 124- [Abstract] ( 1165 ) [HTML 1KB] [ PDF 1503KB] ( 1771 )
125
2011 Vol. 20 (2): 125- [Abstract] ( 1265 ) [HTML 1KB] [ PDF 845KB] ( 1842 )
127
2011 Vol. 20 (2): 127- [Abstract] ( 1117 ) [HTML 1KB] [ PDF 5741KB] ( 1663 )
128
2011 Vol. 20 (2): 128- [Abstract] ( 1163 ) [HTML 1KB] [ PDF 2814KB] ( 2076 )
130
2011 Vol. 20 (2): 130- [Abstract] ( 1023 ) [HTML 1KB] [ PDF 837KB] ( 1810 )
131
2011 Vol. 20 (2): 131- [Abstract] ( 967 ) [HTML 1KB] [ PDF 824KB] ( 1646 )
132
2011 Vol. 20 (2): 132- [Abstract] ( 977 ) [HTML 1KB] [ PDF 831KB] ( 1878 )
133
2011 Vol. 20 (2): 133- [Abstract] ( 1162 ) [HTML 1KB] [ PDF 828KB] ( 1701 )
134
2011 Vol. 20 (2): 134- [Abstract] ( 1296 ) [HTML 1KB] [ PDF 887KB] ( 2665 )
135
2011 Vol. 20 (2): 135- [Abstract] ( 960 ) [HTML 1KB] [ PDF 1518KB] ( 1673 )
136
2011 Vol. 20 (2): 136- [Abstract] ( 1011 ) [HTML 1KB] [ PDF 3553KB] ( 1890 )
138
ZHANG Li-Min, GENG Xu-Hong, LI Zeng-Ping, ZHENG Xi-Xiang
2011 Vol. 20 (2): 138- [Abstract] ( 1041 ) [HTML 1KB] [ PDF 836KB] ( 1853 )
139
LIU Gong-Lai, ZHOU Lian-Jie
2011 Vol. 20 (2): 139- [Abstract] ( 1048 ) [HTML 1KB] [ PDF 821KB] ( 1898 )
140
LIU Yan-1, SONG Guo-Qin-2, LIU Li-3
2011 Vol. 20 (2): 140- [Abstract] ( 926 ) [HTML 1KB] [ PDF 827KB] ( 1567 )
141
LI Yong-Jun, QU Zhi-Jie, WANG Wen-Jie-
2011 Vol. 20 (2): 141- [Abstract] ( 807 ) [HTML 1KB] [ PDF 830KB] ( 1893 )
142
2011 Vol. 20 (2): 142- [Abstract] ( 1046 ) [HTML 1KB] [ PDF 829KB] ( 1698 )
143
2011 Vol. 20 (2): 143- [Abstract] ( 975 ) [HTML 1KB] [ PDF 1494KB] ( 1831 )
144
2011 Vol. 20 (2): 144- [Abstract] ( 846 ) [HTML 1KB] [ PDF 827KB] ( 2008 )
145
2011 Vol. 20 (2): 145- [Abstract] ( 898 ) [HTML 1KB] [ PDF 2134KB] ( 1631 )
147
GUO Mei-Qin-
2011 Vol. 20 (2): 147- [Abstract] ( 1200 ) [HTML 1KB] [ PDF 824KB] ( 2779 )
148
YU Shu-Jun, WANG Hong-Tao, NIE Ling, LV Xiao-Bing
2011 Vol. 20 (2): 148- [Abstract] ( 1198 ) [HTML 1KB] [ PDF 824KB] ( 1874 )
149
2011 Vol. 20 (2): 149- [Abstract] ( 1307 ) [HTML 1KB] [ PDF 855KB] ( 1842 )
152
2011 Vol. 20 (2): 152- [Abstract] ( 1497 ) [HTML 1KB] [ PDF 851KB] ( 3007 )
155
2011 Vol. 20 (2): 155- [Abstract] ( 1514 ) [HTML 1KB] [ PDF 838KB] ( 2272 )
157
JIA Li-Xia, CHEN Xiao-Dan, LIN Zhi-Yang-
2011 Vol. 20 (2): 157- [Abstract] ( 1003 ) [HTML 1KB] [ PDF 876KB] ( 1579 )
实用心电学杂志
　

News

 　
　　　　　　　　        　　More 
　

Links

 　
　　　　　　　　        　　More 
 

Copyright © 2011 JOURNAL OF PRACTICAL ELECTROCARDIOLOGY
Support by Beijing Magtech Co.Ltd   E-mail：support@magtech.com.cn